Hakimi, A. A., Chen, L., Kim, P. H., Sjoberg, D. D., Glickman, L., Walker, M. R., & Russo, P. (2013). The impact of metformin use on recurrence and cancer-specific survival in clinically localized high-risk renal cell carcinoma. Canadian Urological Association Journal, 7(11-12), e687–91. https://doi.org/10.5489/cuaj.1447